Theodoe naejes and paul willmee



(No Model.)

TQNARJES & 'P. WILLMER.

GAS PRODUCER.

Patented July 12,- 1'88 1..

UNITED STATES PATENT OFFICE.

THEODOR NARJES AND PAUL WILLMER, OF ESSEN, GERMANY, ASSIGNORS TO LOUIS G. LAUREAU, OF NEW YORK, N. Y.

GAS-PRODUCER.

SPECIFICATION forming part of Letters Patent No. 244,141, dated July 12, 1881.

Application filed February 2, 1881. (No model.) Patented in England June 26, 1879.

To all whom it may concern Be it known that we, THEonoR NARJEs, of Essen, Germany, and PAUL WILLMER, also of Essen, Germany, have invented a new and useful Improvementin Gas-Producers, of which the following is a specification.

In the drawings, Figure 1 is a vertical'section of our gas-producer. Fig. 2 is a similar view at right angles to Fig. 1, and Figs. 3 and 4 are horizontal sections at the lines m a: and yy respectively.

Our improvement consists in arranging a preheating-compartment, b b, above the ordinary combustion or gas-producing compartment 0, both beingplaced in one producer or retort, a a a a.

The producer is fitted with any suitable grate for cleaning and for air or steam admis- S1011.

In the upper part of the producer a a a a are placed one or more tubes, 1) I), made preferably of sheet iron or steel, within which are the vertical tubes 0 e, and there are pipes at i passing through the tubes 1) and 6 near 2 their upper ends. This upper part is thus divided into several vertical spaces, some of them being used to receive the fuel, while others serve to conduct the gas to the outlet (1. The fuel-spaces are opened above for charg- 0 ing; but the gas-spaces are closed. By these means the fuel, before descending into the lower or combustion part, c, of the producer a a a a, is preheated by the hot gases rising in the gas-spaces. Bituminous coal may be so 3 5 much preheated as to partially give up its gas.

The fuel is charged through the openings h h at the top of the preheating-tubes b b, and passes from these into the gas-producing compartment 0 below, which it fills completely.

o There is thus a continuous mass of fuel from the charging-hopper to the grate, and the fuel descends in proportion as it is consumed in the gas -producing compartment. The fuel reaches this compartment in a driedand heated 5 state. This dried condition of the fuel tends to prevent its sticking in the gas-producing chamber. It descends in a solid body, and not wedge-shaped, as happens in common gasproducers.

The height of the preheaters and the draft toward the gas-outlet cause the products of distillation in the preheaters to go out below into the common gas-space, whence they are carried away to the furnaces. Yet when the fuel is charged damp, the evaporation takes place so near the charging-hopper that the steam rises out through it and is not carried away with the gas.

The arrangement'of the preheater-tubes may be various. They may consist of one or more annular concentric spaces, or of one large oblong (as in Fig. 4.) or oval double -walled tube, or of one single oblong tube parallel to the brick wall of the producer-chamber. In the latter case the coal would be charged be- 6 5 tween the tube and the wall, while the gases would rise in the center. The gas may beconducted off in any suitable manner, depending on local conditions. In all instances the'gases that ascend within the tubes 6 pass off by the tubes 6, that go through the preheating-tubes b and e, and from there the gases pass to the gas-flue d.

The advantages gained are, first, as mentioned above, a better downward movement of the fuel on account of the prepared and dried condition it is in when it reaches the gas-producing chamber, thus allowing the utilization of coal-slack or refuse second, amuch greater production of carbonic oxide because the carbonic acid gas evolved on the grate rises throughout the whole porous mass of the fuel, and not, as usual in ordinary gas-producers, through cracks or slits in the fuel and along the side walls.

We claim as our invention- The combination, in the gas-producing retort, of the preheating-tubes b and a, open at the bottom ends, the tubes 2', passing through the tubesb and e and connecting the gas-space Within the tube 6 with the gas-space outside the tube b, and the gas-flue d, substantially as set forth.

Signed by us this 6th day of January, A. D. 1881.

THEODOR NARJES. PAUL WILLMER. Witnesses:

RIOHARD TOHMITZ, CARL KLEINSOHMIDT. 

